Stoker grate



T. l. SOUBTNEY, W. A. QUENN, AKD ifi- CONNOFS.

STOKLR GRATE.

APPLICATION mw DEQ, 2o, 1919.`

Patented Eea. 5, w22.

mi. QU

2 SHEETS-SHEET l.

ffl/1" Patented i922.

STGKLER SERATE To @ZZ whom t 'may conce/ra,

Be it known that we, lHoiiiAs J. CourirF4 Nev, NVILLIAM AQUINN, and JOHNF. Cl ni- Nons, citizens of the United Stat-es, residing at Scranton, in,the conntv of Lackawanna and State of iennsylvania, have invented certain new and useful improvements in `Stoker Grates; and we do hereby declare the following to be a fall, clear, and exact description of the invention, such as will enable others skilled in the art to Which'it appertains to make and use the same.

rlhis invention relates to nen7 and useful improvements in Stoker `irrates, the main object ol the invention being the provision of per'foratial skeleton grate bars constructed so that air or draft will reach all parts ot' the grrates attached thereon and to provide a gral-e bar that can be removed tor repairs and. attached to endless carrying chains while the stoker is in motion.

A l'urlher object ot the invention is the provision of what will be known a master key bolt used' in securing the grate sections onto the grate bar and also to secure the bar to the traveling or carrying endless chain and to provide an organiz/,ation in relation thereto which will allow eonnnon laborers to make changes or repairs in a ver v short time while the travelinggrate is in motion and thereby save. time1 labor and money.

A further object ol the invention is the provision o'l' a stoker grate havinga flat, sinooth surface or tloor 4which prevents clinkers troni sti -.l in or lioldine` when the grrates are dumping' theierontents in the ash pit.

A still further object of' 'the invention is the provision o'l2 a grate having' a tail arv rangement V which will prevent the contents when dumping, 'l'roxn l'alliiur :in v place ther than in the ash pit and also to provide a grate that stands clear of the grate traine so as to enable it to receive lair through all parts. suitable passages being' provided therefor in the grate sect-ions.

A tui-ther object ol the invention is the provision ot a grate having evenly distributed air spaces arranged so as to burn the smallest size, t'uel and to provide cone-shaped air `holes which prevents blockage and in addition, a hole with nozzle style of construction. to increase the air pressure the point of contact 'with the fuel.

lilith the above and other objects view7l the invention consists in the novel iieatnres of, construction, combination and arrangement of partsy hereinafter more ifalijv eet forth, pointed ont in the claims and shown in the accoinparriving dravvingss in which:

Figure 1 is a side elevation of a plurality of grate ligl'xts einl'iodving` our invention;

Fig. 2 is a perspective view of one ci' the flights;

Fig. 3 is a longitudinal section taken tl'iroug'h the tligrht illustrated in the master bolt heing'disclosed inerte y'a'tiong Fig. et is ay bottoni perspective of one of the end grate sections; i

Fig. 5 is a :fragmentary transverse section through one of the grate sections, illus-:trat` ing; the air hole construction;

Figli. 6 is a transverse sectional view taken through one of the flights;

llig. Z is a fragmentary top perspective oiE one ot the grate sections, and

liig. S is a fragmentary side elevation otwo adjacent sections running` together;

ln the embodiment oi' our invention, we provide lgrate bars 2 having; laterallyl projecting end portions 2, said end portions )eingprovided with pcrtorations 2 in which the upper ends oi the lugs i are an rang-eik said lugs having; spaced perform tions 5 and G't'ornied therein. the perioraH tions 5 being' adapted to receive the bolts 7 which connect the errate bars S2 to the chain links 3.

The grate sections include a plurality of intermediate sections l() and end sectieLA 10 arranged adjacent the end portions ot the grate bars. The intermediate sections are provided with doirnivarrlly piilectii lugs l2 having' wine p'rtions l2 adapted Lo he mounted for sliding movement wit-hin the `guide. channel ll carried hv the grate han thus retaining 'the intermediate grate. sections intheir proper relative positions with respect to the grate bars7 as shown in` Fig. 3.

rl`he end sections l0 are provided with downwardly projecting ings l0 having' transverse pertorations Si adapted to receive the retaining bolts These retaining` bolts Nemesi sec-tions, and means operative to secure the grate bars to the chains, parts of Seid means Operative to maintain the enf grate eeetiene l0 in position to prevent, 'the i'eiriov'a 0f any of the frate sections.

In testimony Wheeei" We mii); oni eignetures. c 

